The raging wind blew underfoot, and the endless death zone was a black desert, with a screed gravel underfoot, and occasionally the ruins of weathered ancient buildings could be seen, and the bones of demons were scattered everywhere.

Alone, with a desolate back, he walked towards a chaotic canopy.

This is the very edge of the Death Zone, where the horizon flickers and glows blue, and that's where the rift in time and space is located.

Suddenly, at the foot of the mountain, there was a tall mine entrance, which was completely different from the abandoned mines with low entrances on the red soil desert that I had seen before.

The entrance to the cave was not blocked, and at this time, the inside and outside of the cave were full of bones, and it seemed that there were more powerful demons who had made this place their own cave.

Black Feather remembered that Rin Proud Soul had said that there was a legendary material called "Dark Magic Crystal", which was hidden under the abandoned mine, and he wanted to find out.

Standing at the mouth of the cave and looking in, there was an eerie cold wind blowing inside, and the whimper of the wind was like the wailing of a wild beast. There was no end in sight in the pitch-black cavern, and there was a dark aura in the air.

This breath lifted Black Feather's spirits, and the courage to explore stimulated him to take a step, and the empty echo hit the stone wall, and he walked inside step by step.

With the faint light at the tip of the staff, Black Feather observed the stone walls on the left and right, on which there were scattered ancient words and drawings engraved with stone knives, but Black Feather couldn't understand the meaning.

"If Ling Xiao's tears were here, I would definitely be able to understand ......" Thinking of this, he felt guilty for leaving Ling Xiao's tears and running away by himself.

A large picture depicts a flat map of the eighteen floors of caves underground, and the location of the vertical stairs that connect each floor. Below the eighteenth floor, there is a sea of fire like hell. Directly below the sea of fire, far away, there was a whirlpool of chaos that could not be seen as it was.

Black Feather wondered in his heart, "What the hell is this underground......

In order to know the answer, he could only continue to grope down. After passing through the narrow hole, I came to a very spacious place, and the stench of the bones outside the cave dissipated. He couldn't help but marvel at the ingenuity of the ancestors who excavated this cave.

It's just that the cave is still pitch black, and there is no ladder to reach the lower level.

After going around in a circle, he returned to the same place, and found that the first layer of the mine was closed on all sides. Suddenly, his fingers touched a small circular hole along the rough stone wall, and a "whirring" breath was spewing out from the hole, and he was looking at it suspiciously, and from above his head, a dragon's eyes opened.

Black Feather was startled and took two steps back.

"Oh my God, I didn't even notice the demon in front of me!"

Because of the thick darkness that filled the cavern, Black Feather ignored that the sleeping dragon was beside him. The stone wall he touched just now was actually the body of the evil dragon, and the hole that was spewing air was the nostrils of the evil dragon.

He jumped to the side, and the terrifying aura on the awakened evil dragon was overwhelmingly attacking the black feather, impacting his nerves and senses.

Hei Yu had seen this kind of demon at the border of the Great Wall before, and the last time he teamed up with Ling Xi to kill it.

These demons are huge, covered in scales as hard as steel, and are extremely ferocious and brutal, and their power is that they can spew purple flames.

After taking a step backwards, his back already pressed against the stone wall, the evil dragon stood up, his body pressed against the top of the cave, and roared wildly at the black feather's head. The sound was amplified in the enclosed space, almost penetrating the eardrums, and the sand and stones above the head were shaken off one after another.

"After all, the space here is small, and if you launch a large-scale attack, you are afraid that the mine will collapse......"

While Black Feather was thinking, the evil dragon had already launched an attack, raising its dragon claws and slamming it towards Black Feather, and Black Feather's figure teleported to the side like black lightning.

The dragon's claws landed on the stone wall behind the black feather, and a large piece of rubble collapsed. Black Feather opened the third seal, his speed immediately doubled, his toes touched the ground, and his figure had already leaped around the dragon's body for half a circle, coming to the back of the evil dragon.

"Magic Light Slash!"

A glitter gathered at the tip of the staff, and a long crescent moon slashed towards the dragon.

The evil dragon just turned its head, its huge body had no way to dodge, although its back was covered with tough scales, and ordinary attacks couldn't hurt it at all, but the magic light slash could easily cut through any tough thing, and the scales resounded with a "clanging bell" sound, and the pieces shattered.

It roared in anger and shook a force that shook the black feather back, and the dragon's tail swept towards the black feather.

As the magic light slashed through a long wound in his back, its dragon tail swung even more wildly and hard, roaring and shattering a stone wall in a fan-shaped area behind him, and the "booming" rubble rolled and fell.

The black feather continued to jump and dodge, and suddenly stepped on the air under his feet, and his body fell down.

"Ahh

There was a "grunt" and his ass fell to the ground in pain, dizzy. This is already the second basement floor.

Rising from the rubble and seeing a large chunk collapsed overhead, he realized that the entrance to the second floor had been blocked by the dragon's massive body.

Standing up and looking around, the darkness was even thicker, and the faint light on the staff couldn't reach much distance. Perhaps because of the lack of sunlight and ventilation for a long time, the dark aura that permeated this layer all sank to the ground, forming a mist that flowed slowly like a river.

The dragon was still roaring above, and Black Feather ignored it and poked his toes into the depths. Now that he has the strength, he doesn't have to be afraid of this dragon.

This long tunnel has several roads of unknown origin connected to many nodes, and two parallel railroad tracks on the ground in the center of the tunnel, presumably for minecarts to and fro.

The walls were slashed with swords and dark black blood, and in the corners were not only the dry bones of demons, but also human bones and carbonized clothing.

"I guess there will be explorers entering this mine once in a while," Kuroba guessed, "and these are the traces they left behind when they fought the demons." ”

Just as he was carefully observing the surroundings, there was a loud bang behind him, the top stone collapsed, and the huge body of the evil dragon actually collapsed and fell down, and it poked the dragon head into the tunnel, opening its huge mouth full of fangs, and the fire flashed in its throat, and suddenly, a purple flame rushed down the long tunnel.

"This guy still hasn't given up!"

Black Feather turned to face the evil dragon, stretched out his wings behind his back, and slammed in front of him, rolling up two gusts of wind and heading towards the flames along the sides of the tunnel, blocking the momentum of the flames.